Listen to this mini-lecture about teenage social media use, and answer the following questions. Question 1 and 2. Complete the following sentences with a NUMBER only. Do NOT write words.1. Viewing social media posts commonly has a negative impact on Answer Question 1[input] of Australian teenagers.

Question

Listen to this mini-lecture about teenage social media use, and answer the following questions. Question 1 and 2. Complete the following sentences with a NUMBER only. Do NOT write words.1. Viewing social media posts commonly has a negative impact on Answer Question 1[input] of Australian teenagers.

BlackTom AI · Accepted Answer

40% of Australian teenagers were reported in the mini-lecture to experience a negative impact from viewing social media posts, so the required numeric response is 40.

1. Relevant knowledge points and concepts
- The prompt requires a single NUMBER only, not words or a percent sign. 
- The mini-lecture provides a survey statistic describing the proportion of Australian teenagers negatively affected by viewing social media posts. That proportion was stated as forty percent (40%).

2. Step-by-step reasoning process
- Step 1: Listen for the specific statistic in the lecture that quantifies the negative impact. The speaker says “forty percent” (40%) of Australian teenagers are commonly negatively affected. 
- Step 2: Translate that spoken percentage into the required answer format. The instructions say “Complete the following sentences with a NUMBER only.” Therefore, remove the percent sign and any words, leaving the digits 40.
- Step 3: Enter 40 in the answer box.

3. Intermediate steps / minor “calculation”
- Spoken percentage = 40%
- Required format = NUMBER only (no % sign, no words)
- Final numeric input = 40

4. Why the correct answer is correct
- The lecture explicitly gave the figure 40% as the proportion of teenagers negatively impacted. Conforming to the input rules (number only) yields 40, which exactly represents that reported proportion.

5. Why other possible numbers would be incorrect
- Any other numeric entries (e.g., 20, 50, 60) do not match the precise statistic stated in the lecture. Entering “40%” or “forty” would violate the “NUMBER only” instruction, so those formats are also incorrect.

Conclusion: The correct numeric response, formatted as required, is 40, which matches the provided answer.

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